What would you do if a scraggly homeless person knocked on your door, and all he asked was for a sandwich, a bottle of water, a bath, and perhaps a beard trim?
I've actually skipped work just to help a homeless guy get his beard trimmed. Bought him pizza too. Kinda hard to get anywhere in life when you look like shit.
Be kind to the homeless, they just need a helping hand here and there.
You seem to have "but what if" responses for every answer.
My answer is no because I don't trust them. Same reason I keep my little dog away from all pit bulls, I don't trust them. Same reason I accept some women want to keep distance with all men, lack of trust.